Exhaust-muffler for engines.



PATENTED SEPT. s

T. CABLE. EXHAUST MUFFLER FOR ENGINES.

ABP'LILQ'ATION FILED D30. 30, 1902.

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PATENTED' SEPT. a, 1903.

F. T. CABLE. EXHAUST MUFFLER FOR ENGINES.

APPLICATION IIIIED DEC. 30, 1902.

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No. 738,160. I Patented September 8, 1903.

UNITED STATES PATENT Price.

FRANK T. CABLE, OF NEYV SUFFOLK, NEW YORK, ASSIGNOR TO ELECTRIC BOAT COIWIPANY, A CORPORATION OF NEWV JERSEY.

EXHAUST-MUFFLER FOR ENGINES.

SPECIFIGATION forming part of Letters Patent No. 738,160, dated September 8, 1903.

Application filed December 30, 1902. Serial No. 137,104. (No model-l I To CLZZ whom, it may concern.- pipes. Each one of these chambers has, as Be it known that I, FRANK T. CABLE, a citiherein shown, three outlet-apertures in the zen of the United States,residingat New Sufplate 4', and each outlet is controlled by a folk,in the county of Suffolk and State of New suitable check-valve 6, one of which is shown 55 5 York, have invented certain new and useful in Fig. 2. As these check-valves may be all Improvements in Exhaust-Mufflers for Enalike, the illustration of one will suffice. gines,of which the following is a specification. Fig. 4 shows how the muffler is mounted on This invention relates, broadly, to means the hull 7 of the spindle-shaped vessel, and for muffling the exhaust of an engine in orit will be by preference so mounted as to be 6o 10 der to destroy or mitigate the noise normally submerged about four inches when the vesproduced by the exhaust, and specifically it sel is operating on the surface.

relates to a submerged muffler for the ex- The valves 6 serve to prevent the influx of haust of an internal-combustion engine emwater at the apertures 5 when the engines are ployed for propelling a submarine boat. running and the exhaust in full operation; 65

I5 The object of the invention is to provide a but when these engines are not operating means for closing the muffler from the intemeans now to be described closes the entire rior of the boat in order to prevent the influx muffler water-tight. of water when the engine is not running. It 8 is a large valve in the nature of a cover has been proposed to provide a submerged and which has been called for convenience 7o exhaust-outlet with a check-valve to prethe cover-valve. This valve practically vent the influx of water when the engine is covers the entire surface of the plate 4, and running; but the present invention has anits margin rests on a packing-ring 9, set in a other and further object in view. There are channel in the plate 4. Mounted in the plate considerable periods of time when the inter 4 are two upright guide-pins 10, which play 75 nal-combustion engines of a submarine boat in tubular guides 11, formed integrally, as are notin operation, and during such periods here shown, on the inner face of the valve. it is very desirable that means shall be pro- The bores in these guides are closed at the vided to close the exhaust outlet or outlets top by screw-plugs 12, and relief-outlets 13 from the inside of the boat, so that it or they are formed in them for the escape of water 80 may be absolutely water-tight. This inventhat may collect in them. Obviously the tion provides a means for effecting this purvalve 8 in its movements up and down will pose. be guided on the pins 10.

In the accompanying drawings, which illus- For operating the valve 8 from inside of trate an embodiment of the invention, Figure the boatit is provided with a centrally-dis- 85 1 is aplan view of the muffler as it appears posed stem 14, the head 14: of which is inwith the main closing-valve or cover-valve reoarcerated in the valve, and this stem passes moved. Fig. 2 is substantially a longitudidown through astuffing-box 15 into the boat, nal vertical section at line 111 Fig. 1. Fig. playing through a tubular guide 16 in the 3 is a plan View of the cover-valve detached. muffler-box and a stuffing-box 17; 90

0 Fig. 4. is a side elevation of the muffler on a In the boat the forked lower end of the'stem smaller scale than the principal views. This 14 is coupled to a lever 18, fulcrumed at-19 'view shows the mechanism inside the boat to a bracket or fixed part in the boat. In a for operating the cover-valve. Fig. 5 is a'secfork at the other end of the lever 18 is pivtion at 00 in Fig. 4. oted a nut 20, which runs on a screw 21, that 5 1 is the body or box of the mu'fller, 2 are the has rotative bearings in a frame 22. This exhaust-inlets to the box, of which four are frame is pivotally connected at its upper end shown, and 3 designates in Fig. 4 the exto a bracket 23. The screw is rotated by a haust-pipes from the engines. lis the top or hand Wheel or crank 24. crown plate of the box 1, which latter is di- Fig. 4 shows in full lines the valve 8, seated 10o 5o vided by suitable partitions into four chainon the packing 9, so as to exclude water from bers connected with the respective exhaustthe outlets 5. Fig. 2 also shows the valve x z 1 closed. The dotted lines in Fig. 4 show the valve open and the position of the lever 18 under these circumstances.

There should be a safety-valve 25 in the crown-plate of the valve 8 to relieve the internal pressure in an emergency. This may be any known or suitable form of relief-valve. Figs. 2 and 3 show only the aperture 25, in which this valve is set.

Having thus described my invention, I claim 1. An exhaust-muffler for use on a submarine boat, having an outlet for the exhaustgases provided with an automatic check-valve to prevent the influx of water when the engine is running, and means for closing said outlet water-tight from the interior of the boat.

2. An exhaust-muflier for use on a submarine boat, having a plurality of outlets for the exhaust-gases, a cover-valve which is adapted to close all of said outlets, and means for opcrating said cover-valve from the interior of the boat.

3. An exhaust-muffler for use on a submarine boat, having a plurality of outlets for the exhaust-gases, each provided with a check; valve, a cover-valve adapted to close all of said outlets, and means for operating said cover-valve to open and close it.

4. An eXhaust-muffier for use submerged; having a plurality of outlets for the exhaustgases, automatic means for checking the inflow of water at said outlets, and hand-op erated means for closing all of said outlets water-tight.

5. A boat having mounted on its hull, exteriorly, an eXhaust-mulfler so disposed as to be normally submerged, said muffler having a plurality of outlets for the exhaust-gases, a check-valve at each of said outlets, and a cover-valve so disposed as to close all of said outlets, and a lever and screw mechanism within the boat for operating said covervalve.

In witness whereof I have hereunto signed my name, this 22d day of December, 1902, in the presence of two subscribing Witnesses.

FRANK T. CABLE.

WVitnesses:

H. G. TUTHILL, F. L. BRAKE. 

